There are two holes on each side of the reg. One is for the guage or plug. The other is for the air input. When you look in the holes, if you see the reg springs then this hole is for input. If you put the air input in the wrong hole, then it wont regulate. I say this because I accidentally switched the lines and the 850 psi from my HPA tank screwed up the guage. Good thing it comes with a plug if you choose not to run the guage. Also, make sure you put teflon tape or locktight on the guage and input threads or it will leak. (duh)

As for performance, on my cocker (+- 3)and tippmann (+- 5). No shootdown on my RT Tippmann at 550 psi. Keeps up with my cocker(swing trigger) at 270 psi. Both guns run around 285 fps. Haven't tried it on any E-guns yet. The AIM is also very easy to clean. Haven't tried it with CO2. It doesn't get in the way of my drop forwards and it comes with a 90 degree stainless steel elbow.

Update: 3-04-2004

This reg is great. I recently used it with CO2 in 60 degree weather on my gas hog Tippmann which now runs at 400 psi 285 fps. It still regulates great. I shot 180 rounds in one long string with the RT cranked up, it got really cold. I sprayed some water on it which froze almost on contact. I wasn't running an anti-siphon or remote. I then hit the chrono. 275 270 274 268 266. Not bad considering there was liquid CO2 running straight through it.

There are two holes on opposite sides of the reg about an inch from the top o-ring. Looking through the top you can see light coming in from one of the holes. This is the guage hole.

I've cleaned this reg about once a month since I got it. It's easy to take apart compared to my 2002 Gladiator. It doesn't seem sensitive to dirt either but I clean it regularly and usually use compressed air so dirt isn't too mch of an issue.

This is the best regulator I ever used now. It does what a regulalor suppose to do. It comes with a 600 PSI Gauge (installed), which is great. It's very consistent, stable, reliable, dependable....... i've been using it for 3 months regularly without any problems or errors. I shot almost 5000 shots without any problems. Best looking regulator in the market right now. Great Anodizing and state-of-the-art Milling. I higly recommend this reg. to anyone of you, especially cocker and intimadator player. You can't go wrong with AIM. btw, i got this for $69.00 only. I know that they're selling it even cheaper than i paid now.

Conclusion:

If you want to fully utilize the potential of your marker, go for AIM68 regulator!!!! If you want a best looking and reliability reg., go for AIM68 regulator.

It is easy to install and adjust. It looks great and it has great concistancy. I had +-2psi on my autococker. The instuctions it came with were very clear and easy to understand. This is a great product and I had great service in purchasing this regulator. Aim is a great company and they really need to expand their product line.

Low price, very consistent! Available in different colors to match you marker.

Weaknesses:

Spyder's stock steel-braided hose had different threads. Just replace or get an adapter.

Review:

I have tried many different reg's on my marker - all performing very consistently. However my two favorites were the AKA Sidewinder and the AIM 68. Out of the two, I did not notice and differences in performance. But the AIM, including S/H, cost me less than half of what I originally paid for the AKA.

Conclusion:

You cannot have a true LP setup with out the AIM Regulator. There are others that will give you the same or slightly better results. However, the price just blows all other regs away. I suggest getting the AIM Reg.

i think this is a great product for a great price. i got it for 60 bucks off e bay and i have no complaints. at first i couldnt get it to shoot over 20 fps. but i just unscrewed the adjustment screw and back in again and had the timmy working at 15 bps no shootdown and at 85-90 psi. remember to lube the insides before you use it. Will help prevent leaks and will help it last longer

Extremely cheap for how well it performs
Easy to adjust
Gauge is useful
Looks cool

Weaknesses:

One input
A tad on the heavy side

Review:

I dont really want to repeat what other people have said, but overall if i had the choice b/t this and a ans i would chose the aim b/c it is cheaper and it performs just a smige below the ans, no noticable difference. O yeah i did notice something with chrome reg it kind of tarnished, but i cleaned it with 409 and it looks good as new, i hope that is not a bad sign

Conclusion:

If u haev $60 buy an aim reg. I would recommend using ebay and paypal just because it is reliable and lighter on your wallet.

My team has done research on Aim products and have resently desided to share our results (that means this research and testing is exlcusive and very accurate)

here is the rating compared to other regs i hope you find this useful (it was tested with a cp (adjust.) highflow and the standard wgp (adjust.) highflow)

unique:10 - milling is hard to find, all and all a great reg
airflow: 8 - a little more drop off then other two (about a 10fps drop after a consistent 16bps for 10 seconds)
maitance:10 easy to sweet-spot, easy to clean, easy to use
price:8 you pay for what you get but this is alittle up there (msrp 100)
weight: as off the regs were all within about 4 grams from eachother we didn't rate them
quality: 10 you pay for a great reg and yo uget one

Conclusion:

If you have the money and want a great unique regulator buy this you will not be disappointed

I cannot get this reg or the X2 to shoot down. Very nice grip, matches my milling. Very consistent with nitro at least. Gauge is accurate even down to 200psi, and the reg flows like no tomorrow. I did a test on auto emptying a whole Halo B in about 5 seconds, and I had no chrono, but the circle was very tight with no stray balls at all. I think for the price this cannot be beat.

Conclusion:

For the money you cannot go wrong, oh and my Gen X2 is my back up just to show you how much I like this reg. (same consistency as the X2 but grip is better)

I love the reg...it does everything a reg is suppose to do and then more...the only thing that i have found that i did not like is where the input it for the hose...its all the way up at the top so it didnt help me at all and u cant put ur hand around it or u fell like you will break it...that is the only reason i am putting a 9 for the rating.

When we first got this installed it was said to be the best reg the guy at the shop had ever seen. That is just the beggining. When we took them out to the field and besides recieving more compliments then i can count we also had amazing pressure not a single gun was acting up because of over shooting our regulators air flow capacity

Conclusion:

GET IT AS SOON AS YOU CAN it is worth every cent i have never seen a cooler or better reg